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US 2010/0073586 A1Published application
Liquid crystal display (LCD) panel and pixel driving device therefor
AssigneeAcer Incorporated
InventorChih-Chiang Chen
Life of this patent
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Abstract
A pixel driving device for a liquid crystal display (LCD) panel includes first and second transistors and first and second storage capacitors. The second transistor has a gate electrode coupled to a gate electrode of the first transistor, and a drain electrode coupled to a drain electrode of the first transistor. The first storage capacitor has a capacitor terminal coupled to a source electrode of the first transistor. The second storage capacitor has a first capacitor terminal coupled to a source electrode of the second transistor, and a second capacitor terminal coupled to the gate electrode of the first transistor of the pixel driving device in another pixel row of the LCD panel.
Claims23
A pixel driving device for a liquid crystal display (LCD) panel, the LCD panel including a plurality of first liquid crystal capacitors and a plurality of second liquid crystal capacitors, said pixel driving device comprising:
- a first transistor having a gate electrode, a drain electrode, and a source electrode adapted to be coupled to a respective one of the first liquid crystal capacitors;
- a second transistor having a gate electrode coupled to said gate electrode of said first transistor, a drain electrode coupled to said drain electrode of said first transistor, and a source electrode adapted to be coupled to a respective one of the second liquid crystal capacitors;
- a first storage capacitor having a capacitor terminal coupled to said source electrode of said first transistor;
- and
- a second storage capacitor having a first capacitor terminal coupled to said source electrode of said second transistor, and a second capacitor terminal adapted to be coupled to said gate electrode of said first transistor of said pixel driving device in another pixel row of the LCD panel.
2 more elements
A liquid crystal display (LCD) panel, comprising:
- a plurality of first liquid crystal capacitors;
- a plurality of second liquid crystal capacitors;
- and
- a plurality of rows of pixel driving devices, each of said pixel driving devices including
- a first transistor having a gate electrode, a drain electrode, and a source electrode coupled to a respective one of said first liquid crystal capacitors,
- a second transistor having a gate electrode coupled to said gate electrode of said first transistor, a drain electrode coupled to said drain electrode of said first transistor, and a source electrode coupled to a respective one of said second liquid crystal capacitors,
- a first storage capacitor having a capacitor terminal coupled to said source electrode of said first transistor, and
- a second storage capacitor having a first capacitor terminal coupled to said source electrode of said second transistor, and a second capacitor terminal,
- said second capacitor terminal of said second storage capacitor of each of said pixel driving devices in one of the rows being coupled to said gate electrode of said first transistor of said pixel driving devices in another one of the rows.
6 more elements
A transistor substrate, comprising:
- a transparent substrate member defining a plurality of rows of pixel regions;
- an electrode layer divided into a plurality of first electrode regions, each of which is disposed in a respective one of said pixel regions, and a plurality of second electrode regions, each of which is disposed in a respective one of said pixel regions;
- a plurality of first transistors, each of which is disposed in a respective one of said pixel regions, each of said first transistors having a gate electrode, a drain electrode, and a source electrode coupled to said first electrode region in the respective one of said pixel regions;
- a plurality of second transistors, each of which is disposed in a respective one of said pixel regions, each of said second transistors having a gate electrode coupled to said gate electrode of said first transistor in the respective one of said pixel regions, and a source electrode coupled to said second electrode region in the respective one of said pixel regions;
- a plurality of first storage capacitors, each of which is disposed in a respective one of said pixel regions and is coupled to said first electrode region in the respective one of said pixel regions, each of said first storage capacitors having a capacitor terminal coupled to said source electrode of said first transistor in the respective one of said pixel regions;
- and
- a plurality of second storage capacitors, each of which is disposed in a respective one of said pixel regions and is coupled to said second electrode region in the respective one of said pixel regions, each of said second storage capacitors having a first capacitor terminal coupled to said source electrode of said second transistor in the respective one of said pixel regions, and a second capacitor terminal,
- said second capacitor terminal of said second storage capacitor in each of said pixel regions in one of the rows being coupled to said gate electrode of said first transistor in one of said pixel regions in another one of the rows.
5 more elements
A liquid crystal display (LCD) panel, comprising:
- a transistor substrate including
- a transparent substrate member defining a plurality of rows of pixel regions,
- an electrode layer divided into a plurality of first electrode regions, each of which is disposed in a respective one of said pixel regions, and a plurality of second electrode regions, each of which is disposed in a respective one of said pixel regions,
- a plurality of first transistors, each of which is disposed in a respective one of said pixel regions, each of said first transistors having a gate electrode, a drain electrode, and a source electrode coupled to said first electrode region in the respective one of said pixel regions,
- a plurality of second transistors, each of which is disposed in a respective one of said pixel regions, each of said second transistors having a gate electrode coupled to said gate electrode of said first transistor in the respective one of said pixel regions, and a source electrode coupled to said second electrode region in the respective one of said pixel regions,
- a plurality of first storage capacitors, each of which is disposed in a respective one of said pixel regions and is coupled to said first electrode region in the respective one of said pixel regions, each of said first storage capacitors having a capacitor terminal coupled to said source electrode of said first transistor in the respective one of said pixel regions, and
- a plurality of second storage capacitors, each of which is disposed in a respective one of said pixel regions and is coupled to said second electrode region in the respective one of said pixel regions, each of said second storage capacitors having a first capacitor terminal coupled to said source electrode of said second transistor in the respective one of said pixel regions, and a second capacitor terminal,
- said second capacitor terminal of said second storage capacitor in each of said pixel regions in one of the rows being coupled to said gate electrode of said first transistor in one of said pixel regions in another one of the rows;
- and
- a color filter substrate disposed on said transistor substrate.
7 more elements
Dependencies are inferred from the claim text.